High-performance anti-corrosion powder coating
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Based on their application, they can be classified into powders for spraying inside pipes, powders for spraying outside pipes (single-layer and double-layer heavy-duty anti-corrosion powder coatings, weather-resistant heavy-duty anti-corrosion powder coatings), powders for use in oil well pipes, as well as single-layer heavy-duty anti-corrosion powder coatings for three-layer structural anti-corrosion purposes, heavy-duty anti-corrosion powder coatings for rebar, and functional heavy-duty anti-corrosion powder coatings； The Amanda series of heavy-duty anti-corrosion powder coatings are classified into the following five types according to their main applications, as shown in Table 1. Table 1 Product Names and Categories (by Application) AmandaFBEN Type Heavy-Duty Anti-Corrosion Powder Coating (for internal anti-corrosion use) 1. Primarily used for the anti-corrosion protection of the inner walls of various pipes, as well as various pipe fittings. AmandaFBE Type Series of Heavy-Duty Anti-Corrosion Powder Coatings 2. Used for the anti-corrosion protection of the outer walls of long-distance pipelines, as well as various containers and pipe fittings ； Based on curing time, they are further divided into fast-type, slow-type, and standard-type. Amanda 3PE type heavy-duty anti-corrosion powder coating (for three-layer PE protection); 3. Application to long-distance oil product pipelines and natural gas pipelines ； Coating of the outer walls of municipal gas and natural gas pipeline lines. AmandaFBE568 dual-epoxy powder coating (outer coat): 4. It is suitable for the external anti-corrosion protection of various long-distance pipelines, and is used as an outer coat in combination with AmandaFBEN568. AmandaFBE566 is a heavy-duty, anti-corrosion and scratch-resistant powder coating for steel rebar; it is suitable for protecting the rebar and plywood used in buildings such as ports, bridges, and industrial facilities. 1 The performance requirements for the powder are shown in Table 2. Table 2: Parameter | Technical specifications | AmandaFBEN | AmandaFBE | Amanda three PE | AmandaFBE568 | AmandaFBE566. Density, g/cm3: 1.3–1.5, with slight variations depending on color; 1.3–1.5, with slight variations depending on color; 1.3–1.5, with slight variations depending on color; 1.4–1.6, with slight variations depending on color; 1.1–1.5, with slight variations depending on color. Content of non-volatile substances: ≥99.4% | ≥99.4% | ≥99.4% | ≥99.4% | ≥99.4%. Average particle size, μm: 50–100 | 50–100 | 40–60 | 40–60 | 50–100. Percentage of particles larger than 150 μm: not more than 3.0% ； For >250μm, it should be no more than 0.2%; this value can be adjusted according to the user’s requirements. For >150μm, it should be no more than 3.0% ； For >250μm, it should be no more than 0.2%; this value can be adjusted according to the user’s requirements. For >150μm, it should be no more than 3.0% ； For >250μm, it should be no more than 0.2%; this value can be adjusted according to the user’s requirements. For >150μm, it should be no more than 4.0% ； For >250μm, it should be no more than 0.2%; this value can be adjusted according to the user’s requirements. For >150μm, it should be no more than 3.0% ； The level of 250μm particles not exceeding 0.2% can be adjusted according to the user’s requirements; magnetic material content
Heavy-duty anti-corrosion powder coating is a type of anti-corrosive coating used on the surfaces of materials such as pipes and rebar. Depending on their intended use, heavy-duty anti-corrosion powder coatings can be divided into various types such as powders for internal pipeline spraying, powders for external pipeline spraying, powders for oil well pipes, and powders for three-layer anti-corrosion protection. Based on the main applications of the Amanda series of heavy-duty anti-corrosion powder coatings, they can be classified into five types: anti-corrosion treatment for the inner walls of various pipes, anti-corrosion treatment for the outer walls of long-distance pipelines, coating for refined oil pipelines and gas pipelines, external anti-corrosion coatings suitable for long-distance pipelines, and anti-corrosion treatment for rebar and building materials. The performance requirements for heavy-duty anti-corrosion powder coatings include parameters such as density, volatile matter content, particle size, magnetic material content, gelation time, and coverage rate. In addition, the physical property requirements for coatings include indicators such as appearance, gloss, thickness, impact resistance, bending resistance, adhesion, cathodic stripping, electrical strength, volume resistivity, wear resistance, salt spray test, porosity of the cross-section, porosity of the bond interface, and scratch resistance. The chemical resistance and solvent resistance of the coating are also important considerations. The manufacturing method of heavy-duty anti-corrosion powder coatings includes steps such as pre-mixing of raw materials, melt mixing, cooling and crushing, grading and sieving, as well as packaging of the finished product. According to the formulation design, selecting appropriate raw materials can yield ideal single-layer or three-layer PE-sintered epoxy powder coatings. During the construction process, heavy-duty anti-corrosion powder coatings can be applied using various methods such as electrostatic spraying, thermal spraying, suction method, and fluidized bed method. The specific process flow includes steps such as pretreatment, workpiece preheating, application of powder coating, curing, coating cooling, and surface inspection. Overall, heavy-duty anti-corrosion powder coatings are reliable and effective anti-corrosion materials that are widely used for the protection of materials such as pipes and rebar; they can enhance the service life and anti-corrosion performance of the coating. .